Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Ch 13 La...
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Date
Class
CHAPTER 13
MiniLab
Model Hybridization
How are hybrid lilies produced? In this lab, you will examine techniques used by both
professional plant breeders and amateur gardeners to produce the wide variety of lilies
you might see growing in landscaped areas.
Procedure EE
1. Read and complete the lab safety form.
2. Obtain a labeled drawing of a lily flower and a
fresh open lily flower. Examine the flower with
a hand lens, and identify the male anthers and
the female pistil.
3. Use a cotton swab to gently rub an anther to
pick up pollen.
4. Trade flowers with another lab group and, using
the cotton swab, gently apply the pollen from
your flower to the stigma of the pistil of the
new flower.
Analysis
1. Infer When breeders hybridize lilies, they transfer pollen to the stigma of an
unopened lily flower and then cover the stigma with a foil cap. Why do you think
this would be necessary?
2. Think Critically A breeder produces a hybrid lily, which is then allowed to grow
'and produce seeds naturally. When these seeds are planted, the new lily plants
do not have the same characteristics as the hybrid parent. Hypothesize why this
would occur.
Unit 3
CHAPTER 13 Genetics and Biotechnology 115
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